Water + cold + humidity have lead to about 10 spots of mold I've found. mostly in the new building which has had some soupy mud and puddles forming. Dozer came, tried fixing some of my issues... we'll see if it works with the next real rain. working on rounding some cash up for more gravel and fabric around the buildings, but this should work for now.
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have you considered gutters on the greenhouses and harvesting all the rain to use for watering?
might not cost more than the dozing and your plants would love it.
Can't wait to see your monsters this fall!